Picture of the UE Megaboom 3 Bluetooth speaker charging.

UE Megaboom 3 Charge Time for Full Recharge

You charge this Bluetooth speakers via the covered micro USB charging port. And to get the quickest UE Megaboom 3 charge time, and the fullest charging when the speaker runs out of power, use a medium to high current USB adapter. Also, exercise the battery, and do not leave the speaker on the charger once it has fully recharged.

UE Megaboom 3 Speaker Charge Time: How Long to Reach Full Charge

According to the specs the time it takes to charge this speaker is roughly three (3) hours.

Picture of the Power button glowing on the UE Megaboom 3 BT speaker.
The Power button glowing on the UE Megaboom 3 BT speaker.

How Long it Plays on a Full Charge

On a complete charge, the UE Megaboom 3 can play for up to twenty (20) hours.  But when you play it loudly, especially with extra bass, you will see somewhat shorter lasting power.  We’ve seen this Bluetooth speaker run dead in around fourteen (14) hours when played at louder volumes. So to get the longest charge time from it, power saving helps a lot.  Just play it only as loudly as you need to, to hear it well throughout your listening space, and you will see longer play times.

Picture of the front and top of the UE Megaboom 3 speaker.
Front top view of the US Megaboom 3 speaker.

The Charge Time Gets Smaller as the Megaboom 3 Ages

If you own this speaker over several years, you may notice that the time it plays from a single charge shrinks as the speaker gets older.  This is normal for devices like this one, that rely on ion lithium batteries.

But by working the battery every now and then, you can slow this charge fall off.

To exercise the battery, run it dead and charge it again every three to six months when not in use.

Also, we suggest that you not leave the speaker plugged into a charger once it has reached full charge.  Right after the charging lamps completely go out, disconnect the speaker as soon as you can, to avoid overcharging it and degrading the battery.

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References for UE Megaboom 3 Charge Time

    1. Official Megaboom 3 Wireless Speaker Product Page at UltimateEars.COM

Revisions Log

    • 2022-10-23: First published.